Construction of HEK293 and C2C12 cell models transfected by LMNA mutant and related intracellular sublocalization of lamin A/C

Objective To construct an expression vector of fusion protein from wild type LMNA and mutant and the lentivirus vector of LMNA mutant, to study the expression and sublocalization of lamin A/C and the change of nucleus in HEK293 and C2C12 cells. Methods The wild type LMNA was cloned into pEGFP-N1 pla...

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Main Author: TAN Dan-dan, CHAI Jing-yan, LIU Jian-yun, NIE Hong-bing, XIONG Hui, WU Xiang-bin
Format: Article
Language:zho
Published: Institute of Basic Medical Sciences and Peking Union Medical College Hospital, Chinese Academy of Medical Sciences / Peking Union Medical College. 2020-04-01
Series:Jichu yixue yu linchuang
Subjects:
Online Access:http://journal11.magtechjournal.com/Jwk_jcyxylc/fileup/1001-6325/PDF/a190820.pdf
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author TAN Dan-dan, CHAI Jing-yan, LIU Jian-yun, NIE Hong-bing, XIONG Hui, WU Xiang-bin
author_facet TAN Dan-dan, CHAI Jing-yan, LIU Jian-yun, NIE Hong-bing, XIONG Hui, WU Xiang-bin
author_sort TAN Dan-dan, CHAI Jing-yan, LIU Jian-yun, NIE Hong-bing, XIONG Hui, WU Xiang-bin
collection DOAJ
description Objective To construct an expression vector of fusion protein from wild type LMNA and mutant and the lentivirus vector of LMNA mutant, to study the expression and sublocalization of lamin A/C and the change of nucleus in HEK293 and C2C12 cells. Methods The wild type LMNA was cloned into pEGFP-N1 plasmid to construct pEGFP-N1-LMNA, then pEGFP-N1-LMNA-I373V plasmid for c.1117A>G site-directed mutant was constructed. The pEGFP-N1-LMNA and pEGFP-N1-LMNA-I373V were transfected respectively into HEK293 and C2C12 cells. Then C2C12 cells were selected with G418 and the sublocalization of GFP-labeled lamin A/C and nuclear morphology were observed under fluorescent microscope. pHBLV-h-LMNA-I373V-3*flag-GFP-PURO was constructed by using pEGFP-N1-LMNA-I373V plasmid as template. After packaging and detecting the titer of pHBLV-GFP-PURO and pHBLV-LMNA-C1117-3*flag-GFP-PURO, C2C12 cells were transfected by the lentivirus. The sublocalization of lamin A/C and abnormal nuclear morphology were examined by immunofluorescence staining. Results The sequences of pEGFP-N1-LMNA, pEGFP-N1-LMNA-I373V and pHBLV-LMNA-C1117-3*flag-GFP-PURO were the same as the target gene. Lamin A/C distributed uniformly at the inner nuclear membrane in HEK293 and C2C12 cells transfected by pEGFP-N1-LMNA, but distributed abnormally, forming distinct aggregates in the cells with transfection of the mutant construct. C2C12 exhibited lower transfection efficiency of plasmid than HEK293. However, transfection efficiency of lentivirus in C2C12 was improved significantly. Lamin A/C forming distinct aggregates in nucleus and abnormal nuclear morphology were also showed in C2C12 after transfection of mutant lentivirus. Conclusions Two kinds of eukaryotic expression vectors of LMNA mutant, and HEK293 and C2C12 cell models transfected by LMNA mutant are successfully constructed, which provides scientific basis for the pathogenesis of diseases caused by LMNA mutant.
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spelling doaj.art-842a5e19a1ca4e0f9b3c51a9ed6b86982024-01-05T03:14:34ZzhoInstitute of Basic Medical Sciences and Peking Union Medical College Hospital, Chinese Academy of Medical Sciences / Peking Union Medical College.Jichu yixue yu linchuang1001-63252020-04-01404483489Construction of HEK293 and C2C12 cell models transfected by LMNA mutant and related intracellular sublocalization of lamin A/CTAN Dan-dan, CHAI Jing-yan, LIU Jian-yun, NIE Hong-bing, XIONG Hui, WU Xiang-bin01. Department of Neurology, Jiujiang University Affiliated Hospital;;2. Laboratory of Jiangxi Proince for the Systems Bio-Medicine, Basic Medical College, Jiujiang University, Jiujiang 332000;;3. Department of Pediatrics, Peking University First Hospital, Beijing 100034, ChinaObjective To construct an expression vector of fusion protein from wild type LMNA and mutant and the lentivirus vector of LMNA mutant, to study the expression and sublocalization of lamin A/C and the change of nucleus in HEK293 and C2C12 cells. Methods The wild type LMNA was cloned into pEGFP-N1 plasmid to construct pEGFP-N1-LMNA, then pEGFP-N1-LMNA-I373V plasmid for c.1117A>G site-directed mutant was constructed. The pEGFP-N1-LMNA and pEGFP-N1-LMNA-I373V were transfected respectively into HEK293 and C2C12 cells. Then C2C12 cells were selected with G418 and the sublocalization of GFP-labeled lamin A/C and nuclear morphology were observed under fluorescent microscope. pHBLV-h-LMNA-I373V-3*flag-GFP-PURO was constructed by using pEGFP-N1-LMNA-I373V plasmid as template. After packaging and detecting the titer of pHBLV-GFP-PURO and pHBLV-LMNA-C1117-3*flag-GFP-PURO, C2C12 cells were transfected by the lentivirus. The sublocalization of lamin A/C and abnormal nuclear morphology were examined by immunofluorescence staining. Results The sequences of pEGFP-N1-LMNA, pEGFP-N1-LMNA-I373V and pHBLV-LMNA-C1117-3*flag-GFP-PURO were the same as the target gene. Lamin A/C distributed uniformly at the inner nuclear membrane in HEK293 and C2C12 cells transfected by pEGFP-N1-LMNA, but distributed abnormally, forming distinct aggregates in the cells with transfection of the mutant construct. C2C12 exhibited lower transfection efficiency of plasmid than HEK293. However, transfection efficiency of lentivirus in C2C12 was improved significantly. Lamin A/C forming distinct aggregates in nucleus and abnormal nuclear morphology were also showed in C2C12 after transfection of mutant lentivirus. Conclusions Two kinds of eukaryotic expression vectors of LMNA mutant, and HEK293 and C2C12 cell models transfected by LMNA mutant are successfully constructed, which provides scientific basis for the pathogenesis of diseases caused by LMNA mutant.http://journal11.magtechjournal.com/Jwk_jcyxylc/fileup/1001-6325/PDF/a190820.pdflmna gene|lamin a/c|lentivirus|mutation
spellingShingle TAN Dan-dan, CHAI Jing-yan, LIU Jian-yun, NIE Hong-bing, XIONG Hui, WU Xiang-bin
Construction of HEK293 and C2C12 cell models transfected by LMNA mutant and related intracellular sublocalization of lamin A/C
Jichu yixue yu linchuang
lmna gene|lamin a/c|lentivirus|mutation
title Construction of HEK293 and C2C12 cell models transfected by LMNA mutant and related intracellular sublocalization of lamin A/C
title_full Construction of HEK293 and C2C12 cell models transfected by LMNA mutant and related intracellular sublocalization of lamin A/C
title_fullStr Construction of HEK293 and C2C12 cell models transfected by LMNA mutant and related intracellular sublocalization of lamin A/C
title_full_unstemmed Construction of HEK293 and C2C12 cell models transfected by LMNA mutant and related intracellular sublocalization of lamin A/C
title_short Construction of HEK293 and C2C12 cell models transfected by LMNA mutant and related intracellular sublocalization of lamin A/C
title_sort construction of hek293 and c2c12 cell models transfected by lmna mutant and related intracellular sublocalization of lamin a c
topic lmna gene|lamin a/c|lentivirus|mutation
url http://journal11.magtechjournal.com/Jwk_jcyxylc/fileup/1001-6325/PDF/a190820.pdf
work_keys_str_mv AT tandandanchaijingyanliujianyunniehongbingxionghuiwuxiangbin constructionofhek293andc2c12cellmodelstransfectedbylmnamutantandrelatedintracellularsublocalizationoflaminac